Hallicrafters mostly used the SW prefix for consumer-grade general coverage receivers.

SW-500SW-500 General Coverage Receiver, Single Conversion. This 4 band radio tunes from 540 kHz to 30 MHz and has a BFO
for SSB reception. It uses 4 tubes and is exactly the same as the S-120 with a different color lower front panel.
Includes 43" telescoping antenna. Production year 1961.